Journal
COMPUTATIONAL MATERIALS SCIENCE
Volume 61, Issue -, Pages 116-126Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.commatsci.2012.04.010
Keywords
FEA; 5-Harness satin; Textile composites; Damage; Plasticity; Micromechanics
Categories
Funding
- POPH - QREN - Tipologia 4.1 - Formacao Avancada [PDCTE-EME-65099-2003]
- Fundacao para a Ciencia e a Tecnologia (FCT) [SFRH-BD-24045-2005]
- Fundo Social Europeu
- Fundação para a Ciência e a Tecnologia [PDCTE/EME/65099/2003, SFRH/BD/24045/2005] Funding Source: FCT
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The mechanical behaviour of a polymer composite reinforced by 5-harness satin weave is modelled using a micromechanical approach in which each of its constituents is characterised by a constitutive damage model. The epoxy matrix is modelled using an elasto-plastic with isotropic damage law while the fibrous reinforcements follow a transversely isotropic damage law. A representative unit cell of a 5-harness satin weave has been generated and a set of periodic boundary conditions implemented in order to run micromechanical analyses. Volumetric homogenisation is performed on the obtained micro-stress and -strain fields in order to study stiffness degradation and damage evolution of the satin weave under different in-plane multiaxial loading conditions. (C) 2012 Elsevier B.V. All rights reserved.
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